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Finding the Fourth Proportional to 306,303.30, 422,693.82 and 170,332.02

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Solution

The fourth proportional to 306,303.30, 422,693.82 and 170,332.02 is: 235,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,303.30 : 422,693.82 = 170,332.02 : x
  2. Step 2: Convert to fraction form
    306,303.30/422,693.82 = 170,332.02/x
  3. Step 3: Cross multiply
    306,303.30x = 422,693.82 × 170,332.02
  4. Step 4: Simplify right side
    306,303.30x = 71,998,292,202.12
  5. Step 5: Solve for x
    x = 71,998,292,202.12/306,303.30
  6. Step 6: Final answer
    x = 235,055.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.